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Finding the Fourth Proportional to 977,452.40, 1,465,487.40 and 445,228.40

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Solution

The fourth proportional to 977,452.40, 1,465,487.40 and 445,228.40 is: 667,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,452.40 : 1,465,487.40 = 445,228.40 : x
  2. Step 2: Convert to fraction form
    977,452.40/1,465,487.40 = 445,228.40/x
  3. Step 3: Cross multiply
    977,452.40x = 1,465,487.40 × 445,228.40
  4. Step 4: Simplify right side
    977,452.40x = 652,476,610,322.16
  5. Step 5: Solve for x
    x = 652,476,610,322.16/977,452.40
  6. Step 6: Final answer
    x = 667,527.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.